In evo sims handmade conspecs always seem to break down fast since canibots will have lots of free food at their disposal...
I've had one bot evolve a good conspec on it's own, where it would still shoot at anything it saw but move away from it's own kind and attack alge... if the other one attacked it it would still defend itself though... so nothing was black or white, the bots of the same species would also end up fighting over alge... (got no idea how they where able to tell, but I guess if they saw an alge within a short time they where far more agressive or something...)
No carnivores evolved, and got tired of running it... the bots where just too good at getting away... would reproduce to cause confusion and try to get away with the alge, and it used shell, seemed to make some when it got attacked. (Not using ties... it just evolved realy good ball controll)